// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_GFX_IMAGE_IMAGE_PNG_REP_H_
#define UI_GFX_IMAGE_IMAGE_PNG_REP_H_

#include "base/memory/ref_counted_memory.h"
#include "ui/gfx/gfx_export.h"

namespace gfx {
class Size;

// An ImagePNGRep represents a bitmap's png encoded data and the scale factor it
// was intended for.
struct GFX_EXPORT ImagePNGRep {
public:
    ImagePNGRep();
    ImagePNGRep(const scoped_refptr<base::RefCountedMemory>& data,
        float data_scale);
    ~ImagePNGRep();

    // Width and height of the image, in pixels.
    // If the image is invalid, returns gfx::Size(0, 0).
    // Warning: This operation processes the entire image stream, so its result
    // should be cached if it is needed multiple times.
    gfx::Size Size() const;

    scoped_refptr<base::RefCountedMemory> raw_data;
    float scale;
};

} // namespace gfx

#endif // UI_GFX_IMAGE_IMAGE_PNG_REP_H_
